Water Pump: Service and Repair

WATER PUMP

REMOVAL
1. Drain cooling system.
2. Remove timing belt.
3. Remove camshaft sprockets and rear timing belt cover.





4. Remove screws attaching water pump to engine. Remove pump.

INSPECTION
Replace water pump body assembly if it has any of these defects:
1. Cracks or damage on the body.
2. Coolant leaks from the shaft seal, evident by wet coolant traces on the pump body.
3. Loose or rough turning bearing.
4. Impeller rubs either the pump body or the engine block.
5. Impeller loose or damaged.
6. Sprocket or sprocket flange loose or damaged.

INSTALLATION




1. Apply Mopar Dielectric Grease to new O-ring before installation.
2. Install O-ring gasket in water pump body groove.

CAUTION: Make sure O-ring gasket is properly seated in water pump groove before tightening screws. An improperly located O-ring may cause damage to the O-ring, resulting in a coolant leak.

3. Assemble pump body to block and tighten screws to 12 Nm (105 inch lbs.).
4. Rotate pump by hand to check for freedom of movement.
5. Fill cooling system. Pressurize cooling system to 103 kPa (15 psi) with pressure tester and check water pump shaft seal and O-ring for leaks.
6. Install rear timing belt cover and camshaft sprockets.
7. Install timing belt.